/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.db.migration.helper;

import static org.hisp.dhis.db.migration.helper.UniqueValueUtils.addValue;
import static org.junit.jupiter.api.Assertions.assertEquals;

import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import org.junit.jupiter.api.Test;

/**
 * Tests the {@link UniqueValueUtils}.
 *
 * @author Jan Bernitt
 */
class UniqueValueUtilsTest {

  @Test
  void addUniqueEnsuresUniqueNames() {
    Set<String> uniques = new HashSet<>(Arrays.asList("abc", "ab1", "bcd", "bc2"));
    assertEquals("ab2", addValue("abc", 3, uniques));
    assertEquals("ab3", addValue("ab2", 3, uniques));
    assertEquals("new", addValue("new", 3, uniques));
    assertEquals("bc1", addValue("bc1", 3, uniques));
    assertEquals("bc3", addValue("bc1d", 3, uniques));
    for (int i = 4; i <= 9; i++) {
      assertEquals("bc" + i, addValue("bc1" + i, 3, uniques));
    }
    assertEquals("b10", addValue("bc1x", 3, uniques));
    assertEquals("b11", addValue("bc1z", 3, uniques));
    assertEquals("a", addValue("a", 3, uniques));
    assertEquals("a1", addValue("a", 3, uniques));
  }
}
